One trivial comment:
+ logical replication slots</link>. The system automatically
increases the
+ effective WAL level to <literal>logical</literal> when
creating the first
+ logical replication slot, and decreases it back to
<literal>replica</literal>
+ when dropping the last logical replication slot. The current
effective WAL
+ level can be monitored through <xref
linkend="guc-effective-wal-level"/>
+ parameter.
Shouldn't we mention about invalidation of slot along with dropping of slot?
thanks
Shveta